(Washington Post) — Some Republicans watching the cluttered 2012 presidential field may have found an unlikely point of disagreement: the first lady and flab.  Sarah Palin has taken to assailing Michelle Obama’s anti-obesity initiative on her reality show and elsewhere, while former Arkansas governor Mike Huckabee, the Republican Party’s resident authority on obesity and a potential Palin rival, has been defending it from Palin’s salvos. Two other possibleGOP presidential contenders, Mississippi Gov. Haley Barbour and former senator Rick Santorum (Pa.), have also praised Obama’s efforts.

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